The plugin of type org.exoplatform.services.organization.impl.NewUserEventListener specifies which groups all the newly created users should become members of. It specifies the groups and the memberships to use (while the group is just a set of users, a membership type represents a user's role within a group). It also specifies a list of users that should not be processed (i.e. administrative users like 'root').
The terms 'membership' and 'membership type' refer to the same thing, and are used interchangeably.
<component-plugin>
<name>new.user.event.listener</name>
<set-method>addListenerPlugin</set-method>
<type>org.exoplatform.services.organization.impl.NewUserEventListener</type>
<description>this listener assign group and membership to a new created user</description>
<init-params>
<object-param>
<name>configuration</name>
<description>description</description>
<object type="org.exoplatform.services.organization.impl.NewUserConfig">
<field name="group">
<collection type="java.util.ArrayList">
<value>
<object type="org.exoplatform.services.organization.impl.NewUserConfig$JoinGroup">
<field name="groupId"><string>/user</string></field>
<field name="membership"><string>member</string></field>
</object>
</value>
</collection>
</field>
<field name="ignoredUser">
<collection type="java.util.HashSet">
<value><string>exo</string></value>
<value><string>root</string></value>
<value><string>company</string></value>
<value><string>community</string></value>
</collection>
</field>
</object>
</object-param>
</init-params>
</component-plugin>